#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include "gtkdial.h"

void value_changed( GtkAdjustment *adjustment,
                    GtkWidget     *label )
{
    char buffer[16];

    sprintf(buffer,"%4.2f",adjustment->value);
    gtk_label_set_text (GTK_LABEL (label), buffer);
}

int main( int   argc,
          char *argv[])
{
    GtkWidget *window;
    GtkAdjustment *adjustment;
    GtkWidget *dial;
    GtkWidget *frame;
    GtkWidget *vbox;
    GtkWidget *label;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

    gtk_window_set_title (GTK_WINDOW (window), "Dial");

    g_signal_connect (window, "destroy",
                      G_CALLBACK (exit), NULL);

    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    vbox = gtk_vbox_new (FALSE, 5);
    gtk_container_add (GTK_CONTAINER (window), vbox);
    gtk_widget_show (vbox);

    frame = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
    gtk_container_add (GTK_CONTAINER (vbox), frame);
    gtk_widget_show (frame);

    adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, 100, 0.01, 0.1, 0));

    dial = gtk_dial_new (adjustment);
    gtk_dial_set_update_policy (GTK_DIAL (dial), GTK_UPDATE_DELAYED);
    /*  gtk_widget_set_size_request (dial, 100, 100); */

    gtk_container_add (GTK_CONTAINER (frame), dial);
    gtk_widget_show (dial);

    label = gtk_label_new ("0.00");
    gtk_box_pack_end (GTK_BOX (vbox), label, 0, 0, 0);
    gtk_widget_show (label);

    g_signal_connect (adjustment, "value_changed",
                      G_CALLBACK (value_changed), (gpointer) label);

    gtk_widget_show (window);

    gtk_main ();

    return 0;
}
